Improving Random Read Performance of Glibc
The Cloud data services,specifically,key/value stores and NoSQL database that require a large number of index lookups that fetch small amount of data.Random I/O becomes the critical performance factor.However,compared with sequential read,the efficiency of random read is very low.Our experiment will explain this.File I/O operation is closely associated with the implementation of I/O mechanism both in kernel space and user space.In this paper,we aims at analyzing the standard I/O mechanism,improving the standard I/O mechanism in user space for random read and implement into the glibc.Our experiment test result proves that our improved I/O mechanism will greatly improve the performance of random read.
glibc standard I/O random read I/O buffer kernel file pointer
Mei Wang Yuanyuan Zhou Feng Xiao Qiuming Luo
School of Computer Engineering Shenzhen Polytechnic Shenzhen,China College of Computer Science and Software Engineering Shenzhen University Shenzhen,China
国际会议
湖北咸宁
英文
78-82
2014-11-24（万方平台首次上网日期，不代表论文的发表时间）